Really? I tried DT out not too long ago and found it to be horrendously slow in doing...everything. I have a Galaxy S, which might not be the number one phone in speed at the moment, but it's up there. And even then, videos had some clear framerate issues, and the desktop application took two hours to copy over music, whereas the native OS copy function took about 30 minutes.
Good for them though, I suppose.
I'll stick with Winamp for audio.